Ater a Luca Ceppitelli own goal, Lucas Paquetá and Krzysztof Piatek secured the comfortable 3-0 victory.
“We did well tonight, played good football and could've had more goals. I didn't like the attitude of the midfielders in the first half, as we weren't taking enough control," Gattuso told Sky Sport Italia.
“I've liked our performances for a while and said we needed to get both phases right, attacking and defending. We were fortunate today.
“Now it's about hunger, the desire to work together as a unit. I don't want to hear 'I' from anyone, it's about 'us.' For many years we've reached the spring and Milan have been outside the race for the Champions League, but we need to break that trend and fight hard to be in a strong position when the final weeks arrive.
“I expect more from Hakan Calhanoglu, because he has remarkable technique, but then you have to look at how much he runs, the distance he travels and the work-rate. I think he is unfairly maligned, I like the way he interprets that role.
“He's not a real winger, I know that, but he can unite the midfield with the attack and give a lot of quality to the side."